Searcy’s Iris in St Mary’s Axe is yet another skyline bar which has made our selection. The 40th floor of the Gherkin offers – not only 360-degree spectacular views of the city – but also a close up encounter with the geometric details of Norman Foster’s architectural imprint on London. It is essential to book to enjoy the expertly crafted cocktails that are inpsired by different areas of London. While you’re up in the clouds Iris’ sister establishment, Helix, is right next door serving dinner.